Ian Jackson writes ("Re: [PATCH 2/2] tools: detect appropriate debug
optimization level"):
> My initial reaction is that I any actual problems are bugs either in
> the compiler or in Xen, which should be fixed.
>
> There should be nothing wrong with lack of inlining or dead code
> elimination. If you can give an example of structure padding going
> wrong, please do.
Having said that, the reason for specifying -O0 is the use case that
gcc now provides -Og for. So I see no harm and some benefit in using
-Og if it is supported.
Ian.
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